The stone tools at Rimrock Draw are just the latest in a growing pile of evidence that people arrived in North America thousands of years before the ice sheets opened enough to create an ice-free ...

But for geologists, this ice is a time machine, much like the Egyptian hieroglyphics or the Greeks’ Rosetta Stone. The ice encapsulates ... the Antarctic ice sheet and extracted a colossal ...

The Greenland and Antarctic ice sheets are on course for rapid retreat, even collapse, leading to multiple feet of sea level rise even if the world pulls off the miraculous and keeps global warming to ...

The red color is from iron oxide. Mineral deposits formed in the past from such fluids show how the ice sheet responded to cyclic changes in climate. (Photo by Slawek Tulaczyk) Graduate student Gavin ...

The ancient stone that underlies the island is solid, persistent and almost unmovable. It was present the last time the ice sheet completely disappeared, and it still contains chemical signatures ...

It’s also vitally important because of the role it plays in global sea levels. As the ice sheet loses mass, sea levels rise — ...

Collapse of the West Antarctic Ice Sheet could be triggered by very little ocean warming above present-day, leading to a ...

The Antarctic and Greenland ice sheets. As temperatures rise, that ice is melting, flowing into the ocean and making sea levels rise. While change in sea level rise is often measured in ...

The world’s ice sheets are on course for runaway melting, leading to multiple feet of sea level rise and “catastrophic” migration away from coastlines, even if the world pulls off the ...